Check the manufacturer’s website for a list of file types supported by the TV, and ensure that the videos you’re trying to play are included in that list.

Make sure your internet connection is enabled on the TV and that the signal strength is strong enough to handle streaming.

Ensure that you have the necessary accounts and subscriptions enabled for streaming.

Check the TV’s software for any available updates that may improve compatibility and performance.

Ensure you have the necessary app or streaming service installed on the TV, and that it’s compatible with the video file type you are trying to play.